Hi Tomislav,
thanks for the reply, and thanks to ed in 92626, too, for the url's
provided.
So, Tomislav, i got a cluster running, i dont know if it was i the
beowuld default configurations, but i got it running with serveral
howtos that i found o the web.
I got it running with LAM-MPI and PVM. I had 3 machines, an Intel Core 2
Duo and two Pentium 4 HT, all with intel motherboard and 2GB RAM each.
The test that i made with some binaries of LAM-MPI and PVM got good
results but couldnt get the performance result, i didnt made any test
for that.
I was pretending to build a cluster with high number of processors and
a lot of memory, so i could build a XEN server inside this cluster, and
create a virtual machine to use all this resource, but seems that this
is not possible.
I cant get the xen to work with distributed processor, can i?
Byt the way, thanks a lot!
Thank you all!
Tony Miranda.
On 10/23/2009 04:56 PM, tomislav.maric at gmx.com wrote:
>> Hello Tony,
>>> I'm building my own at home with 2 nodes. This is a padawan's humble
> info, so please, don't kill me if I get something wrong, I mean only well.
>>> 1) You need to figure out what application are you going to run on the
> cluster, in parallel. I have managed to follow only general guidelines
> so far, since I'm running OpenFOAM CFD (Computational Fluid Dynamics)
> simulations that burden the memory and the communications between the
> nodes. This will tell you about the hardware: should you use
> multiprocessor motherboards or like me, quad core single processor
> ones. Actually, this is kind of a gradual process of examining your
> application on a cluster, and it's kind of a closed circle: you need
> to know which hardware suits your applications, and to know that, you
> need to have a cluster to examine your app on. From my padawan point
> of view (I may be totally wrong), people usually test their
> application on a remote machine (if that't possible, from some company
> that provides the hardware), or they buy just a few motherboards that
> fit the price/performance conditions and are IN GENERAL, OK for a
> targeted application. After they assemble the tiny cluster, they scale
> it, praying as they do it, that the behaviour of the program won't
> completely change on the bigger machine.
>>> This is how I've dealt with this problem:
>>> - I need a fast processor and loads of RAM: I've bought P5Q-VM
> motherboard because it's not so expensive and you get 4 slots for RAM
> (up to 16GB of RAM) per node, and I've put Intel Quad core processors
> on the computing nodes. I could be totally wrong, but I don't think
> so: anyway, the application will tell me, and then I can sell the
> electronics and buy something different (I hope to God, this won't
> happen).
>> - I bought a GigEth switch (High Speed Interconnect I can't afford as
> a graduate student because one HSI NIC kosts like 800 dollars)
>> - I bought myself some hard disks
>> - a monitor
>> - another GigEth nic for the frontend (master) node to be able to
> access Internet
>> - some PSUs
>> - ... etc
>>> If you want to build a small home beowulf, check out Limulus project:
>>>http://limulus.basement-supercomputing.com/>>> When I figure out the casing for my cluster, it will actully become
> kind of a Limulus cluster, i hope.
>>>> 3) Don't worry about the "old" literature, I have read this:
>> - prof. Robert G. Brown's book
>> - how to build a beowulf cluster
>> - Building Cluster Linux Systems
>> - .... huge amount of googling...
>>> The protocols are the same, and not much has changed from 2004.
> for a small home beowulf, I have learned much by reading these
> books/articles. Also, go to www.clustermonkey.net, and read until you
> go blind.
>>> I don't know much, but what I know I'll tell you (don't kill me if I'm
> wrong, just correct me so that I can learn also :) ), feel free to ask
> me on my email (or post here, which is more efficient because here
> you'll get your answer from a well respected bunch of
> HPC/Linux/Admin/Programming/... masters).
>>> Best regards and godspeed,
>> Tomislav
>>>> ----- Original Message -----
>> From: Tony Miranda
>> Sent: 10/21/09 08:27 pm
>> To: beowulf at beowulf.org>> Subject: [Beowulf] Build a Beowulf Cluster
>> Hi everyone,
>> anyone could help me explaning how to build a beowulf cluster?
> An web site, a list of parameters anything updated. Cause i only found
> in the internet posts that are really old.
>> Thanks a lot.
>> Tony Miranda.
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